.so-hero{padding-top:28px;background:linear-gradient(180deg,#f8fbff 0,#eef3f9 100%)}
.so-breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:21px;color:#64748b;font:10px Inter,sans-serif}
.so-breadcrumb a{color:#1d4ed8;text-decoration:none}.so-breadcrumb a:hover{text-decoration:underline}
.so-hero-grid{align-items:start;gap:34px}.so-lead{max-width:680px;color:#475569;font:14px/1.75 Inter,sans-serif}
.so-direct{margin:17px 0;padding:13px 15px;border:1px solid #bfdbfe;border-left:4px solid #3b82f6;border-radius:9px;background:#eff6ff;color:#1e3a8a;font:12px/1.55 Inter,sans-serif}
.so-stats{grid-template-columns:repeat(3,1fr);margin:17px 0}.so-stats .stat-val{font-size:18px}.so-stats .stat-label{font-size:8px}
.so-card{padding:23px;border:1px solid #e2e8f0;border-radius:15px;background:#fff;box-shadow:0 18px 45px rgba(29,53,87,.12)}
.so-card-head,.so-result-head{display:flex;justify-content:space-between;gap:12px;align-items:start;margin-bottom:16px}
.so-card-head span,.so-result-head span{color:#e63946;font:700 9px Inter,sans-serif;letter-spacing:.07em;text-transform:uppercase}
.so-card-head h2,.so-result-head h2{margin:3px 0 0;font-size:18px}.so-card-head>b{padding:5px 8px;border-radius:99px;background:#dcfce7;color:#166534;font:700 9px Lexend,sans-serif}
.so-unit-switch{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin:0 0 12px;padding:9px 10px;border:1px solid #dbe3ed;border-radius:10px;background:#fff}
.so-unit-switch>span{margin-right:auto;color:#475569;font:700 9px Lexend,sans-serif;text-transform:uppercase}.so-unit-switch label{cursor:pointer}.so-unit-switch input{position:absolute;opacity:0;pointer-events:none}
.so-unit-switch label span{display:block;padding:7px 10px;border:1px solid #dbe3ed;border-radius:8px;color:#64748b;font:700 9px Lexend,sans-serif}.so-unit-switch input:checked+span{border-color:#1d3557;background:#1d3557;color:#fff}.so-unit-switch input:focus-visible+span{outline:3px solid rgba(29,53,87,.18)}
.so-group{margin:0;padding:15px;border:1px solid #e2e8f0;border-radius:12px;background:#f8fafc}.so-group legend{padding:0 6px;color:#1d3557;font:700 9px Lexend,sans-serif;text-transform:uppercase;letter-spacing:.04em}
.so-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.so-fields-three{grid-template-columns:repeat(3,1fr)}
.so-fields label{display:block;color:#475569;font:700 9px Lexend,sans-serif}.so-fields label em{color:#94a3b8;font-style:normal;font-weight:500}.so-fields label small{display:block;margin:3px 0 6px;color:#94a3b8;font:400 8px/1.4 Inter,sans-serif}
.so-fields input{box-sizing:border-box;width:100%;padding:11px 9px;border:1.5px solid #dbe3ed;border-radius:9px;background:#fff;color:#1d3557;font:700 15px Lexend,sans-serif}.so-fields input:focus{outline:0;border-color:#1d3557;box-shadow:0 0 0 3px rgba(29,53,87,.1)}
.so-optional{margin-top:10px;border:1px solid #dbe3ed;border-radius:10px;background:#fff}.so-optional summary{padding:11px 13px;cursor:pointer;color:#1d3557;font:600 10px Lexend,sans-serif}.so-optional[open] summary{border-bottom:1px solid #e2e8f0}.so-optional .so-fields{padding:12px 12px 5px}.so-optional>p{margin:3px 12px 12px;color:#64748b;font:9px/1.5 Inter,sans-serif}
.so-unit-note{margin:9px 0;color:#64748b;font:9px/1.5 Inter,sans-serif}.so-examples{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:12px}.so-examples>span{color:#64748b;font:600 9px Lexend,sans-serif}.so-examples button{padding:6px 9px;border:1px solid #cbd5e1;border-radius:99px;background:#fff;color:#1d3557;cursor:pointer;font:600 8px Lexend,sans-serif}.so-examples button:hover{border-color:#1d3557;background:#eff6ff}
.so-error{display:none;margin:0 0 10px;padding:10px;border-radius:8px;background:#fff1f2;color:#be123c;font:600 11px/1.5 Inter,sans-serif}.so-error.show{display:block}.so-actions{display:grid;grid-template-columns:1fr auto;gap:8px}.so-actions>button:last-child,.so-print{padding:10px 13px;border:1px solid #cbd5e1;border-radius:9px;background:#fff;color:#475569;cursor:pointer;font:600 10px Lexend,sans-serif}.so-actions>button:last-child:hover,.so-print:hover{border-color:#94a3b8;background:#f8fafc}
.so-result{margin-top:20px;padding-top:18px;border-top:1px solid #e2e8f0}.so-result[hidden],.so-result-grid>div[hidden],.so-working[hidden]{display:none}.so-result-head{align-items:center;margin-bottom:0}.so-result-head>b{padding:6px 9px;border-radius:99px;background:#eff6ff;color:#1e40af;font:700 9px Lexend,sans-serif}.so-result-head>b.is-low{background:#fef2f2;color:#991b1b}.so-result-head>b.is-high{background:#fff7ed;color:#9a3412}
.so-main-value{padding:16px 0 12px;text-align:center}.so-main-value strong{color:#1d3557;font:800 34px Lexend,sans-serif}.so-main-value>span{margin-left:5px;color:#64748b;font:600 11px Lexend,sans-serif}.so-main-value p{margin:4px 0 0;color:#475569;font:600 10px Inter,sans-serif}
.so-result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.so-result-grid>div{padding:11px 7px;border:1px solid #e2e8f0;border-radius:9px;background:#f8fafc;text-align:center}.so-result-grid span,.so-result-grid strong,.so-result-grid small{display:block}.so-result-grid span{color:#94a3b8;font:8px Inter,sans-serif;text-transform:uppercase}.so-result-grid strong{margin:4px 0 2px;color:#1d3557;font:700 14px Lexend,sans-serif}.so-result-grid small{color:#64748b;font:8px/1.3 Inter,sans-serif}
.so-working{margin:9px 0;padding:11px;border-radius:8px;background:#1d3557}.so-working span{display:block;margin-bottom:4px;color:#bfdbfe;font:700 8px Inter,sans-serif;text-transform:uppercase}.so-working code{display:block;color:#fff;font:600 9px/1.5 monospace;overflow-wrap:anywhere}.so-working-light{margin-top:7px;border:1px solid #bfdbfe;background:#eff6ff}.so-working-light span{color:#1d4ed8}.so-working-light code{color:#1e3a8a}.so-working-gap{border:1px solid #fde68a;background:#fffbeb}.so-working-gap span{color:#b45309}.so-working-gap code{color:#78350f}
.so-result-note{margin-top:10px;padding:10px;border-left:4px solid #3b82f6;border-radius:7px;background:#eff6ff;color:#1e3a8a;font:10px/1.5 Inter,sans-serif}.so-result-note.is-warning{border-color:#f59e0b;background:#fff7ed;color:#9a3412}.so-result-note.is-danger{border-color:#e63946;background:#fff1f2;color:#881337}.so-print{margin-top:9px}
.so-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:30px;align-items:start}.so-layout .main-article{min-width:0}.so-note{margin:17px 0;padding:14px 16px;border:1px solid #bfdbfe;border-radius:10px;background:#eff6ff;color:#1e3a8a;font:12px/1.65 Inter,sans-serif}.so-formula{margin:18px 0;padding:18px;border-radius:11px;background:#1d3557;color:#fff;text-align:center;font:700 16px/1.45 Lexend,sans-serif}.so-formula-light{border:1px solid #bfdbfe;background:#eff6ff;color:#1e3a8a}
.so-formula-grid,.so-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}.so-formula-grid>div,.so-compare>div{padding:18px;border:1px solid #dbe3ed;border-radius:11px;background:#fff}.so-formula-grid span,.so-formula-grid strong,.so-formula-grid code,.so-compare span{display:block}.so-formula-grid span,.so-compare span{color:#e63946;font:700 9px Inter,sans-serif;text-transform:uppercase}.so-formula-grid strong{margin:8px 0;color:#1d3557;font:700 13px/1.55 Lexend,sans-serif}.so-formula-grid code,.so-compare code{padding:7px;border-radius:7px;background:#f1f5f9;color:#475569;font:600 9px monospace}.so-compare h3{margin:5px 0;font-size:13px}.so-compare p{font-size:11px}
.so-steps{padding:0;list-style:none}.so-steps li{display:grid;grid-template-columns:30px 1fr;gap:12px;margin-bottom:9px;padding:13px;border:1px solid #e2e8f0;border-radius:10px;background:#fff}.so-steps li>b,.so-worked li>b{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:#e63946;color:#fff;font:700 10px Lexend,sans-serif}.so-steps h3{margin:2px 0 5px;font-size:12px}.so-steps p{margin:0;font-size:11px}
.so-worked{margin:18px 0;padding:17px;border:1px solid #e2e8f0;border-radius:11px;background:#fff}.so-worked>span{display:block;margin-bottom:11px;color:#e63946;font:700 10px Lexend,sans-serif;text-transform:uppercase}.so-worked ol{margin:0;padding:0;list-style:none}.so-worked li{display:grid;grid-template-columns:26px 1fr;gap:9px;align-items:center;padding:8px 0;border-bottom:1px solid #f1f5f9}.so-worked li:last-child{border:0}.so-worked li>b{width:24px;height:24px;background:#1d3557;font-size:9px}.so-worked p{margin:0;font-size:11px}
.so-check{padding:0;list-style:none}.so-check li{position:relative;margin-bottom:8px;padding:11px 12px 11px 36px;border-radius:8px;background:#f8fafc;font-size:12px}.so-check li:before{content:'✓';position:absolute;left:12px;color:#16a34a;font-weight:800}.so-alert{margin:15px 0;padding:14px 16px;border-left:4px solid #e63946;border-radius:8px;background:#fff1f2;color:#881337;font:12px/1.6 Inter,sans-serif}
.so-faq details{border-bottom:1px solid #e2e8f0}.so-faq summary{padding:14px 3px;cursor:pointer;color:#1d3557;font:600 13px Lexend,sans-serif}.so-faq p{margin:0;padding:0 3px 14px;font-size:12px}.so-sources li{margin-bottom:9px;font-size:12px}.so-source-note{padding:11px;border-radius:8px;background:#f8fafc;color:#64748b;font-size:10px}
.so-author{display:grid;grid-template-columns:55px 1fr;gap:15px;margin-top:25px;padding:20px;border:1px solid #dbe3ed;border-radius:13px;background:#fff}.so-avatar{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:#1d3557;color:#fff;font:800 15px Lexend,sans-serif}.so-author>div>span{color:#e63946;font:700 9px Inter,sans-serif;text-transform:uppercase;letter-spacing:.06em}.so-author h2{margin:4px 0 7px;font-size:16px}.so-author h2 a{color:#1d3557;text-decoration:none}.so-author p{margin:0 0 8px;font-size:11px}.so-author-link{color:#1d4ed8;font:600 10px Lexend,sans-serif;text-decoration:none}
.so-sidebar nav{display:grid}.so-sidebar .health-item{text-decoration:none}.so-sidebar .health-icon{font-size:8px;font-weight:800}.so-source-card p{font-size:11px}
@media(max-width:900px){.so-layout{grid-template-columns:1fr}.so-sidebar{position:static}.so-fields-three{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.so-fields-three,.so-result-grid{grid-template-columns:1fr 1fr}.so-result-grid>div:first-child:last-child{grid-column:1/-1}}
@media(max-width:600px){.so-card{padding:17px}.so-fields,.so-fields-three,.so-actions,.so-formula-grid,.so-compare{grid-template-columns:1fr}.so-result-grid{grid-template-columns:1fr}.so-main-value strong{font-size:28px}.so-stats{grid-template-columns:repeat(3,1fr)}.so-stats .stat-box{padding:9px 3px}.so-author{grid-template-columns:1fr}.so-avatar{width:45px;height:45px}}
@media(max-width:390px){.so-unit-switch>span{width:100%;margin-bottom:2px}}
@media print{header,footer,#progress-bar,.so-hero-grid>div:first-child,#so-form,.so-print,.so-content{display:none!important}.so-hero-grid{display:block!important}.so-card{box-shadow:none;border:0}.so-result{border:0}}